ClassID:

218114

H02N11/002 - CPC Classification

Classification description:

Generators or motors not provided for elsewhere; Alleged obtained by electric or magnetic means Generators

Sub-classes:
Recent Application in this class:
#1
20260128689
2026-05-07

METHOD AND SYSTEM FOR ELECTRIC POWER GENERATION FROM EARTH'S ROTATION THROUGH ITS OWN MAGNETIC FIELD

#2
20260128688
2026-05-07

KINETIC ENERGY HARVESTING SYSTEM

#3
20260121557
2026-04-30

SYSTEMS AND METHODS FOR THERMAL ENERGY HARVESTING

#4
20260074629
2026-03-12

Powering Personal Devices

#5
20260049601
2026-02-19

ENERGY HARVESTING ROAD

#6
20260018642
2026-01-15

SYSTEMS AND METHODS FOR HARNESSING THERMAL GRADIENT ENERGY

#7
20250382712
2025-12-18

SYSTEM AND METHOD FOR GENERATING HYDROGEN USING GEOTHERMAL ENERGY

#8
20250337345
2025-10-30

Systems and Methods for Generating Power From Martine Environment Thermal Gradients

#9
20250323303
2025-10-16

Reverse Electrodialysis or Pressure-Retarded Osmosis Cell and Methods of Use Thereof

#10
20250293620
2025-09-18

AMYLOID FIBER-BASED ELECTRICITY GENERATOR

#11
20250286479
2025-09-11

MANUFACTURING METHOD OF TRANSPIRATION-BASED POWER GENERATION DEVICE WITH IMPROVED WASHING RESISTANCE AND CONDUCTIVITY

#12
20250211139
2025-06-26

CONTINUOUS ENERGY GENERATION APPARATUS USING LIQUID

#13
20250167590
2025-05-22

HYBRID ENERGY HARVESTING APPARATUS FOR HARVESTING OMNIDIRECTIONAL MULTI-BAND RADIO FREQUENCY ENERGY AND THERMOELECTRIC ENERGY

#14
20250158542
2025-05-15

ThermoElectric Recharging Using Waste-Heat For Demand Charge Reduction

#15
20250158541
2025-05-15

ADAPTIVE ENERGY HARVESTING FOR IMPROVED USER EXPERIENCE

#16
20250149608
2025-05-08

Systems and Methods for Harnessing Thermal Gradient Energy

#17
20250141402
2025-05-01

ENERGY HARVESTING DEVICE AND ENERGY HARVESTING SYSTEM

#18
20250127060
2025-04-17

Energy Storage Systems and Methods

#19
20250080013
2025-03-06

MOBILE INTELLIGENT TERMINAL WITH EMERGENCY CHARGING FUNCTION

#20
20250032974
2025-01-30

Integrated Green Energy and Selective Thermo Molecular Separation System, and Process of Generating Electricity and Capturing Predetermined Molecules in Surrounding Environment

#21
20250023491
2025-01-16

KINETIC ENERGY HARVESTING SYSTEM

#22
20250007428
2025-01-02

Vortex Flux Generator

#23
20240413769
2024-12-12

Process and Apparatus for the Production of Electric Power Avoiding Environmental Wasting

#24
20240397429
2024-11-28

DRX EXTENSION FOR ENERGY HARVESTING REDCAP UES

#25
20240396475
2024-11-28

Garage Door Opener Having Battery Backup System with Extended Standby Mode

#26
20240396122
2024-11-28

VEHICLE INTERIOR DEVICE

#27
20240396069
2024-11-28

Reverse Electrodialysis or Pressure-Retarded Osmosis Cell and Methods of Use Thereof

#28
20240389875
2024-11-28

LIQUID FLOW INDUCED POWER GENERATION USING NANOSCALE METAL LAYERS

#29
20240380339
2024-11-14

POWER GENERATION DEVICE

#30
20240356464
2024-10-24

SELF-POWER GENERATING SWITCH, PROCESSING METHOD THEREFOR, AND PROCESSING SYSTEM

#31
20240356463
2024-10-24

AC supply fluid meter

#32
20240348090
2024-10-17

PROVIDING POWER TO DEVICES FROM A MAGNETOELECTRIC ENERGY HARVESTER

#33
20240344429
2024-10-17

DOWNHOLE POWER AND COMMUNICATIONS SYSTEM(S) AND METHOD(S) OF USING SAME

#34
20240340034
2024-10-10

PACKET TRACKING ENERGY HARVESTING DEVICE FOR LOCATION AND CONDITION STATE MONITORING

#35
20240339943
2024-10-10

POWER GENERATION ELEMENT, METHOD FOR MANUFACTURING POWER GENERATION ELEMENT, POWER GENERATION DEVICE, AND ELECTRONIC APPARATUS

#36
20240266918
2024-08-08

Variable Reluctance and Human Respiration Power Generator

#37
20240235431
2024-07-11

THERMOELECTRIC CLEAN ENERGY

#38
20240235430
2024-07-11

COGENERATION APPARATUS, THERMOELECTRIC POWER GENERATION SYSTEM, VOLTAGE CONTROL METHOD AND HEATING DEVICE

#39
20240223110
2024-07-04

A WIRELESS TRANSMITTER

#40
20240213891
2024-06-27

Electrical Current Generation by magnetic field manipulation via the Meissner Effect

#41
20240206343
2024-06-20

Electric device

#42
20240195330
2024-06-13

A CYCLE POWER GENERATION DEVICE

#43
20240195195
2024-06-13

SELF CONTAINED, REGENERATIVE, DYNAMIC MOTION RESISTANCE MODULE

#44
20240172806
2024-05-30

AEROSOL GENERATING DEVICE

#45
20240162469
2024-05-16

Reverse Electrodialysis or Pressure-Retarded Osmosis Cell with Heat Pump

#46
20240162468
2024-05-16

Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof

#47
20240156205
2024-05-16

SELF-GENERATING AND VIBRATING FUNCTIONAL SHOE EQUIPPED WITH GPS DEVICE

#48
20240136955
2024-04-25

THERMOELECTRIC CLEAN ENERGY

#49
20240136954
2024-04-25

COGENERATION APPARATUS, THERMOELECTRIC POWER GENERATION SYSTEM, VOLTAGE CONTROL METHOD AND HEATING DEVICE

#50
20240120803
2024-04-11

Variable reluctance and human respiration power generator

#51
20240056001
2024-02-15

Vibration-driven energy harvesting device

#52
20240055944
2024-02-15

INTERMITTENT POWER SUPERCAPACITOR TRACKING SYSTEM

#53
20240048077
2024-02-08

Multi-directional energy harvester

#54
20240039430
2024-02-01

OMNI-ELECTRIC GENERATOR

#55
20240030839
2024-01-25

ETERNAL GENERATOR

#56
20240030838
2024-01-25

POWER GENERATION DEVICE AND METHOD BASED ON TIME-VARYING MAGDUCTANCE PRINCIPLE

#57
20240014686
2024-01-11

Nano-scale Electromagnetic Inductance Cells, Arrays formed thereof, and Uses thereof

#58
20230369996
2023-11-16

Implantable Power Generator

#59
20230344369
2023-10-26

Devices and Methods for Energy Harvesting from Air Humidity

#60
20230321491
2023-10-12

Self-Powered Resistance-Adjustable Training Mechanism

#61
20230291333
2023-09-14

Method for Generating Electricity Using Gravity, Gravity-Driven Electricity Generating Device and Power Unit Thereof

#62
20230283206
2023-09-07

Portable charging device with kinetic energy recovery

#63
20230277886
2023-09-07

Electrical Power Generation and Architecture Structure for Controlling an Acoustic Fire Suppression System

#64
20230208324
2023-06-29

Vortex flux generator

#65
20230170778
2023-06-01

Electromagnetic vibration and energy harvester

#66
20230147875
2023-05-11

INTEGRATED GREEN ENERGY AND SELECTIVE MOLECULAR SEPARATION SYSTEM, AND PROCESS OF GENERATING ELECTRICITY AND SELECTIVELY SEPARATING AND CAPTURING PREDETERMINED MOLECULES PRESENT IN SURROUNDING ENVIRONMENT (GREEN ENERGY BLUE)

#67
20230082799
2023-03-16

SYSTEMS AND METHODS FOR AMBIENT ENERGY POWERED PHYSIOLOGICAL PARAMETER MONITORING

#68
20230074890
2023-03-09

Autonomous wireless multivariant sensor node—AWSN

#69
20230062551
2023-03-02

DOWNHOLE POWER AND COMMUNICATIONS SYSTEM(S) AND METHOD(S) OF USING SAME

#70
20230061934
2023-03-02

NEURAL NETWORK-GUIDED PASSIVE SENSOR DRONE INSPECTION SYSTEM

#71
20230059196
2023-02-23

SYSTEM AND METHOD FOR GENERATING POWER

#72
20230028913
2023-01-26

Downhole power generation devices and method for generating power downhole

#73
20230010523
2023-01-12

Self-generating power supply apparatus

#74
20220385110
2022-12-01

Mirror amplified clean energy system

#75
20220360199
2022-11-10

Environmental energy harvesting device

#76
20220324346
2022-10-13

ENERGY SUPPLY SYSTEM

#77
20220311360
2022-09-29

Systems for driving the generation of products using quantum vacuum fluctuations

#78
20220293841
2022-09-15

Energy storage systems and methods

#79
20220260319
2022-08-18

THERMOELECTRIC POWER GENERATION SYSTEM

#80
20220190748
2022-06-16

POWER GENERATION ELEMENT, POWER GENERATION DEVICE, ELECTRONIC APPARATUS, AND METHOD FOR MANUFACTURING POWER GENERATION ELEMENT

#81
20220176268
2022-06-09

Fog-based electrical power generator and self-powered system

#82
20220148777
2022-05-12

Vortex flux generator

#83
20220115963
2022-04-14

ENERGY HARVESTING AND SELF-CLEANING SYSTEM BASED ON GRAPHENE AEROGELS AND PREPARATION METHOD THEREOF

#84
20220084708
2022-03-17

Thermionic power cell

#85
20220077372
2022-03-10

Method and device for the generation of electricity directly from heat

#86
20220060127
2022-02-24

Thermo-dielectric-elastomer-cell

#87
20220038032
2022-02-03

Liquid flow induced power generation using nanoscale metal layers

#88
20220006399
2022-01-06

Quantum vacuum fluctuation devices

#89
20210408870
2021-12-30

Monitoring Systems for Shipping Containers

#90
20210351723
2021-11-11

System for Converting Electromagnetic Radiation to Electrical Energy Using Metamaterials

#91
20210344287
2021-11-04

MXene coated hydrophilic fiber membrane-based complex generator and manufacturing method thereof

#92
20210321943
2021-10-21

Systems and methods for ambient energy powered physiological parameter monitoring

#93
20210265925
2021-08-26

Vortex flux generator

#94
20210242812
2021-08-05

Rotary mechanism

#95
20210211072
2021-07-08

Power generator, wave energy converter or sensor apparatus for water wave energy harvesting

#96
20210194528
2021-06-24

Devices that use power harvesting power sources for operation

#97
20210050804
2021-02-18

Self-sustained frictionless near perpetual maglev generator and method for operating

#98
20210041285
2021-02-11

Fill level measuring arrangement and method for operating a fill level measuring arrangement

#99
20210036205
2021-02-04

THERMOELECTRIC GENERATION APPARATUS

#100
20200412279
2020-12-31

Recovering small scale energy in electronic systems

#101
20200395872
2020-12-17

Systems for driving the generation of products using quantum vacuum fluctuations

#102
20200382022
2020-12-03

Damage assessment

#103
20200358376
2020-11-12

Quantum vacuum fluctuation devices

#104
20200358375
2020-11-12

Quantum noise power devices

#105
20200358374
2020-11-12

Liquid flow induced power generation using nanoscale metal layers

#106
20200357997
2020-11-12

Quantum plasmon fluctuation devices

#107
20200343813
2020-10-29

Power generation device

#108
20200321502
2020-10-08

POWER GENERATION ELEMENT, POWER GENERATION MODULE, POWER GENERATION DEVICE, POWER GENERATION SYSTEM, AND METHOD FOR MANUFACTURING POWER GENERATION ELEMENT

#109
20200303991
2020-09-24

Machine and method for generating electrical power from the motion of a moving towed transport platform

#110
20200295677
2020-09-17

Power receiver including Faraday cage for extracting power from electric field energy in the earth

#111
20200274464
2020-08-27

Metallic glow discharge diode and triode devices with large cold cathode as efficient charge generator—a power cell

#112
20200274234
2020-08-27

System and Method for Making Electronic Structures and Antenna Coupled Terahertz Film with Nanoimprint or Roll-to-Roll

#113
20200252010
2020-08-06

Dielectric elastomer power generation system

#114
20200244297
2020-07-30

Wireless coded communication (WCC) devices with power harvesting power sources

#115
20200237046
2020-07-30

Power-Generating Insole, Power-Generating Blanket and Power-Generating Sock

#116
20200161990
2020-05-21

Triboelectric nanogenerator structure, sensing system and disinfecting system

#117
20200136533
2020-04-30

AUTONOMOUS ELECTRIC GENERATOR FOR PRODUCTION OF RENEWABLE, CLEAN, PORTABLE, AND SUSTAINABLE ENERGY

#118
20200099319
2020-03-26

Continuous biomechanical energy harvester from breath-associated torso movement

#119
20200091840
2020-03-19

GRAPHITE/GRAPHENE-THERMOELECTRIC GENERATOR

#120
20200052180
2020-02-13

THERMOELECTRIC CONVERSION MODULE

#121
20200036303
2020-01-30

Thermal electricity conversion based on the heat extracted from underground coal fires

#122
20200028053
2020-01-23

Materials, devices, and methods for resonant ambient thermal energy harvesting using thermal diodes

#123
20190363746
2019-11-28

Energy aware wireless power harvesting device

#124
20190356247
2019-11-21

System for converting electromagnetic radiation to electrical energy using metamaterials

#125
20190341954
2019-11-07

Energy aware wireless computing system for battery-less devices

#126
20190319554
2019-10-17

Vortex flux generator

#127
20190319553
2019-10-17

THREE-DIMENSIONAL KINETIC GENERATOR

#128
20190318590
2019-10-17

Haptic devices using structured metasurfaces

#129
20190273396
2019-09-05

APPARATUS, SYSTEMS, AND METHODS FOR SHARING POWER BETWEEN DEVICES VIA WEARERS' BODIES

#130
20190253002
2019-08-15

GENERATOR FOR TRANSFORMING A TRANSLATIONAL MOVEMENT OF A BODY INTO AN ACCUMULATION OF ELECTRIC CHARGES

#131
20190229649
2019-07-25

HYDROKINETIC POWER GENERATION SYSTEM

#132
20190209875
2019-07-11

Cartridge and breathing apparatus containing the same

#133
20190157992
2019-05-23

Self powered wireless sensor

#134
20190148085
2019-05-16

Apparatus for generating electrical energy based on hydrophilic fiber membrane and method of fabricating same

#135
20190133107
2019-05-09

Battery-free electric mosquito swatter

#136
20190089270
2019-03-21

Electrostatic induction system for global environmental conservation

#137
20190063412
2019-02-28

Materials, devices, and methods for resonant ambient thermal energy harvesting

#138
20190061970
2019-02-28

MULTI-ROTOR AERIAL DRONE WITH THERMAL ENERGY HARVESTING

#139
20190060699
2019-02-28

Vehicle seat assembly for physical exercise

#140
20180375445
2018-12-27

CONVERTER

#141
20180375443
2018-12-27

Energy generation system and method

#142
20180368071
2018-12-20

Power optimization for a unit cell metamaterial energy harvester

#143
20180356707
2018-12-13

Method and system for parametric amplification

#144
20180350481
2018-12-06

Thermionic power cell

#145
20180337317
2018-11-22

Power generation element, power generation module, power generation device, and power generation system

#146
20180323694
2018-11-08

POWER GENERATION APPARATUS

#147
20180294748
2018-10-11

Systems and devices powered by autonomous electrical power sources

#148
20180287517
2018-10-04

PHASE CHANGE INHIBITED HEAT-TRANSFER THERMOELECTRIC POWER GENERATION DEVICE AND MANUFACTURING METHOD THEREOF

#149
20180287036
2018-10-04

THERMOELECTRIC POWER GENERATION DEVICE AND THERMOELECTRIC POWER GENERATION METHOD

#150
20180287035
2018-10-04

Thermoelectric power generation device

#151
20180271443
2018-09-27

Systems and methods for ambient energy powered physiological parameter monitoring

#152
20180269373
2018-09-20

Device for guiding charge carriers and use thereof

#153
20180262155
2018-09-13

Thermal rectifying antenna complex (TRAC)

#154
20180205328
2018-07-19

Vortex flux generator

#155
20180205222
2018-07-19

Controlling Current in a Supercapacitor Cathodic Protection System

#156
20180202693
2018-07-19

Method and apparatus for electricity generation using electromagnetic induction including thermal transfer between vortex flux generator and refrigerator compartment

#157
20180198048
2018-07-12

Malfunction detection device for power generator

#158
20180183360
2018-06-28

THERMOELECTRIC CONVERSION MODULE

#159
20180183359
2018-06-28

Active cooling for a concentrated photovoltaic cell

#160
20180167090
2018-06-14

SIGNAL COMMUNICATION DEVICE, SIGNAL PROCESSING SYSTEM, AND SIGNAL COMMUNICATION METHOD

#161
20180143675
2018-05-24

Power supply controller and energy harvesting apparatus

#162
20180138712
2018-05-17

Facility with decoupled adaptive sensor system

#163
20180079265
2018-03-22

INTERNAL TIRE WINDMILL ENERGY HARVESTER

#164
20180048248
2018-02-15

Self-sustained frictionless near perpetual maglev generator and method for operating

#165
20180041143
2018-02-08

Device and method for electrical energy synthesis

#166
20180026555
2018-01-25

Reciprocal Hall Effect Energy Generation Device

#167
20180024617
2018-01-25

Wearable computer with power generation

#168
20170365871
2017-12-21

Bio-energy power system

#169
20170346417
2017-11-30

Vortex flux generator

#170
20170279381
2017-09-28

Vortex flux generator

#171
20170222575
2017-08-03

Heat dissipation device and electronic system

#172
20170205305
2017-07-20

Gravity-based light pressure calibrating device and corresponding method

#173
20170187307
2017-06-29

Triboelectric nanogenerator for powering portable electronics

#174
20170170752
2017-06-15

Dielectric blade comb piston unlimited voltage generator, fusor and more

#175
20170119089
2017-05-04

Method and apparatus for providing internal heating of footwear

#176
20170113875
2017-04-27

Energy-harvesting conveyor belts and methods

#177
20170077841
2017-03-16

Energy harvesting apparatus and electronic apparatus having the same

#178
20170054389
2017-02-23

Device and method to generate and capture of gravito-magnetic energy

#179
20170042275
2017-02-16

Sole for footwears capable of recovering part of the energy produced during deambulation

#180
20170040913
2017-02-09

Method and system for parametric amplification

#181
20170025935
2017-01-26

Electromagnetic field generator and method to generate an electromagnetic field

#182
20160359431
2016-12-08

Self powered optical system

#183
20160284456
2016-09-29

MAGNETIC SWITCHING ELEMENT IN A MAGNETIC CIRCUIT ARRANGED IN A DEFINED MANNER INCLUDING INDUCTOR COIL AND METHOD FOR PROVIDING ELECTRICAL ENERGY

#184
20160276961
2016-09-22

Power generating device and an object for utilizing the power generating device

#185
20160225476
2016-08-04

Nuclear thermionic avalanche cells with thermoelectric (NTAC-TE) generator in tandem mode

#186
20160214494
2016-07-28

Apparatus and method for generating power using inertia

#187
20160183629
2016-06-30

INSOLE WITH HEAT GENERATED BY PRESSING SYSTEM

#188
20160155930
2016-06-02

Nanogenerator and method of manufacturing the same

#189
20160094159
2016-03-31

Apparatuses and methods for performing thermodynamic cycles

#190
20160094158
2016-03-31

METHOD FOR POWER STATION SIMULATION

#191
20160094157
2016-03-31

Electric Generator

#192
20160094156
2016-03-31

MEMS sensor including an over-travel stop and method of manufacture

#193
20160094108
2016-03-31

Device for converting heat energy into electrical energy with heat-sensitive molecules

#194
20160043664
2016-02-11

Low profile transducer module

#195
20160036354
2016-02-04

Roadway renewable energy generation system and method

#196
20160027995
2016-01-28

METHOD FOR PRODUCING A MULTILAYER ELECTROMECHANICAL TRANSDUCER

#197
20150381080
2015-12-31

Electromagnetic power generator

#198
20150372621
2015-12-24

System for converting electromagnetic radiation to electrical energy using metamaterials

#199
20150372620
2015-12-24

Integrated micro/nanogenerator and method of fabricating the same

#200
20150372619
2015-12-24

Floating off-shore power generation apparatus using ionic polymeric metal composite

#201
20150372618
2015-12-24

Electromechanical transducer device and analyte information acquiring apparatus

#202
20150340970
2015-11-26

Flexible energy conversion device using liquid

#203
20150303831
2015-10-22

Energy conversion device using liquid

#204
20150288301
2015-10-08

CONNECTION NETWORK FOR NEMS, HAVING AN IMPROVED ARRANGEMENT

#205
20150288002
2015-10-08

Nanodevices for generating power from molecules and batteryless sensing

#206
20150256108
2015-09-10

Pyroelectric power-generating system

#207
20150194923
2015-07-09

Hybrid power generating device

#208
20150153237
2015-06-04

Power generation device, measurement device, and measurement system for generating power by increasing heat quantity due to vibration

#209
20150145373
2015-05-28

Method for producing a thermoelectric component, thermoelectric component and motor vehicle

#210
20150083196
2015-03-26

Magneto-thermoelectric generator for energy harvesting

#211
20150076962
2015-03-19

Method and system for harvesting energy using an EAP based deformable body

#212
20150061459
2015-03-05

Energy conversion device using change of contact area and contact angle of liquid

#213
20150061455
2015-03-05

Vibration device including support portion

#214
20150015112
2015-01-15

Thermo-mechano-electrical converter

#215
20150001989
2015-01-01

POWER-GENERATING SYSTEM

#216
20140361660
2014-12-11

Transducing apparatus

#217
20140327338
2014-11-06

Ocean wave energy converter utilizing temporary immobilization of a float

#218
20140292140
2014-10-02

ELECTRO-HYDRODYNAMIC WIND ENERGY SYSTEM

#219
20140287336
2014-09-25

Nanodevices for generating power from molecules and batteryless sensing

#220
20140265997
2014-09-18

UNDERHOOD HEAT ABSORBER

#221
20140265643
2014-09-18

Vortex flux generator

#222
20140252921
2014-09-11

NUCLEAR MAGNETIC RESONANCE ELECTRIC GENERATOR

#223
20140252920
2014-09-11

THICK FILM FERROELECTRIC GENERATOR

#224
20140252851
2014-09-11

Method and device for generating electrical energy in a motor vehicle

#225
20140225475
2014-08-14

BALL-ELECTRIC POWER GENERATOR

#226
20140225474
2014-08-14

Power generating system

#227
20140217852
2014-08-07

POWER-GENERATING SYSTEM

#228
20140210308
2014-07-31

Energy collection

#229
20140191614
2014-07-10

FERROELECTRIC ENERGY CONVERSION USING PHASE CHANGING FLUIDS

#230
20140184024
2014-07-03

Monolithic energy harvesting system, apparatus, and method

#231
20140182163
2014-07-03

Method and apparatus for providing internal heating of footwear

#232
20140170624
2014-06-19

Device and method to produce gravitomagnetic induction, mass spin-valve or gravitational rectifier

#233
20140152016
2014-06-05

ATMOSPHERIC TRANSDUCTION SYSTEM

#234
20140145550
2014-05-29

ELECTROACTIVE POLYMER ENERGY CONVERTER

#235
20140144486
2014-05-29

Active cooling for a concentrated photovoltaic cell

#236
20140130852
2014-05-15

Diode energy converter for chemical kinetic electron energy transfer

#237
20140117809
2014-05-01

CMUT Array

#238
20140111136
2014-04-24

Pervasive power generation system

#239
20140103744
2014-04-17

Conveying arrangement having a device for generating electric current

#240
20140084748
2014-03-27

Triboelectric nanogenerator for powering portable electronics

#241
20140077656
2014-03-20

Generation of electrical energy in a ski or snowboard

#242
20140070674
2014-03-13

Generator assembly and related devices

#243
20140068973
2014-03-13

Apparatus for footwear-embedded mechanical energy harvesting system based on dual-loop channel

#244
20140035435
2014-02-06

System for generation of useful electrical power from isotopic emissions

#245
20140021825
2014-01-23

Non-stationary multi-frequency vibration energy harvesting with tunable electrical impedance

#246
20130342032
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